Projet mjp 2500 plus

The computer-aided design (CAD) model was created using SolidWorks 2020 (Dassault Systèmes SolidWorks Corp, Waltham, MA, USA). The model was saved as an .STL file for printing purposes, and as an .SAT file for simulations. All files are provided in the ESI. † Models were printed using a high-resolution 3D printer (ProJet® MJP 2500 Plus, 3D Systems, SC, USA) with a xyz resolution of 32, 28 and 32 μm, respectively. The GG was printed with its inlets facing up, as shown in Fig. S1. † Further information on the accuracy of the printing process is given in Fig. S2 and Table S1. † The printed device was removed from the printing platform after incubation at -18 °C for 10 min. Afterward, all pieces were placed in EasyClean units from 3D systems (water vapor bath and hot paraffin oil bath at 65 °C) to remove the wax support material. The interior structures were flushed at least three times with hot paraffin oil using a syringe. To remove oil residues, the parts were then submerged in an ultrasonic bath (Elma Elmasonic S30, Elma, Schmidbauer GmbH, Singen, Germany) with water and detergent at 50 °C for at least three times. Subsequently, the device was cleaned with deionized water and dried at 70 °C for 1 hour.